The chemical change process whereby a molecule breaks down into simpler molecules or elements is called:

decomposition

endothermic

exothermic

a phase change

Why is the first ionization energy of a nonmetal much higher than that of an alkali metal

What is flame over circle mean?

Which is a physical property of matter? A) corrosion B) flammability C) oxidation D) volume

A 71.0 mL aliquot of a 1.80 M solution is diluted to a total volume of 218 mL. A 109 mL portion of that solution is diluted by adding 113 mL of water. What is the final concentration? Assume the volumes are additive

Which of these is an element? A) air B) Carbon dioxide (CO2) C) water (H20) D) carbon (c)

True or False: DNA is our genetic make-up. It is why we have a certain eye color, and hair color, etc.

Which hybrid orbitals would be formed if one s orbital and three p orbitals combined?

The way light bounces off a minerals surface is describe by the minerals

Physical properties can be used to describe matter. Some properties are dependent on the amount of matter present. All BUT ONE of these physical properties changes with the amount of matter. That is A) density. B) mass. C) volume. D) weight.

Which term best describes the substances that cause oil and water molecules in salad Dressing to interact and mix? surfactants miscible liquids immiscible liquids compressed molecules